Leather-rolling machine.



No. 856,810. I PATENTBD JUNE 11, 1907. G. A. SGHIEREN. LEATHER ROLLINGMACHINE.

APPLICATION FILED JUNE 27, 1902.

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f (5 H F -l (5 H F -I attmm PATENTE'ID JUNE 11, 1907.

G. A. SGHIBRBN.

LEATHER ROLLING MACHINE.

APPLICATION FILED JUNE 27. 1002.

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UNITED STATES PATENT @FFTCE.

LEATHER-ROLLING MACHINE.

Specification of Letters Patent.

Patented June 1 1, 1907.

Application filed June 27,1902. Serial No. 113,486.

To all whom it may concern:

Be it known that I, GEORGE ARTHUR SGHIEREN, a citizen of the UnitedStates, and a resident of Bristol, in the county of Sullivan and Stateof Tennessee, have invented certain new and useful Improvements inLeather-Rolling Machines, of which the following is a specification.

My invention relates to rolling machines.

More particularly stated the object of my mvention is to produce arolling machine for leather which is self-adjusting for wear; yieldingto irregularities of stock; compact and not liable to get out of orderor alinement; under easy control of the operator; without jar or suddenstrain upon its oper ating parts; presenting an entire absence ofrubbing, and which will roll wet leather as well as dry.

For this purpose my invention consists in the following combination andarrangement of the parts, the details of which will first be fullydescribed, and. the features of novelty then set forth and claimed IFigure 1 represents a side elevation of a machine to which I haveapplied my improvements. Fig. 2 is a front elevation thereof. Fig. 3 isa rear elevation of the machine. Fig. 4 is a top plan view of themachine, showing parts thereof in horizontal section.

In the drawings 1 represents the bed-plate of the machine.

2 is a rigid frame of the Q-shaped type presenting two oppositelyprojecting jaws 3 and 4, between and upon which the main rolls of themachine are carried. The lower jaw carries an open bearing 5 in which ishung an oscillating yoke frame 6 which oscillates thereon in a linetransverse to the length of the machine. Yoke 6 carries bearings 7within which is mounted the shaft 8 rotated by the driving mechanism ofthe machine. Shaft 8 carries the lower roll 9 splined or otherwisesecured fast thereto.

The rotary shaft 10 is in line with the shaft 8, and rotating therewith,and is provided with a gear 12 at the rear of the machine, the twoshafts 8 and 10 being connected by a universal or knuckle joint device11 which permits the shaft 8 to be driven by the counter-shaft 10, andat the same time to yield in predetermined limits in any direction.Geared to the counter-shaft by gear wheels 12 and 13 is anothercounter-shaft 14. which drives the upper roll 15. Roll 15 is carried inthe upper jaw 3 in bearings 16.

The main driving shaft 17 is carried in a tail extension 18 of the frame2 and turns in bearings 19. Upon the shaft 17 is a pinion 20 which gearswith the intermediate gear 13 transmitting motion in its turn to thegear 13.

21 is the fast pulley on the driving shaft 17, and. 22 and 23 are loosepulleys upon either side of fast. pulley 21. adapted to drive themachine, and to reverse the direction of the rolls and to stop themachine. 24 are belt-shifter devices by means of which these operationsare performed and are on either side of the machine.

The lower jaw 5 of the frame 2 is pivotal in character, 2:) being thepivot bearing upon which the jaw has a vertical oscillation. Yoke 6 iscarried in the outer end of this jaw, the jaw, in this instance,consisting in part of two long lever arms 26 and 27 pivoted at' 25, therear ends of which are extended and. provided with weights 28, saidweights acting to force the ja and its yoke 6, carrying the lower roll9, constantly upward and in contact with the upper roll 15.

It will be noted that the lower roll 9 has an oscillating verticalmovement upon the pivoted arms 26 and 27 and a horizontally oscillatingmovement upon the yoke 6 and its bearings 5, the roller itself acting asa yielding bed.

The two rollers 9 and 15 have the same peripheral speed, which preventsrubbing. A uniform pressure is given to the leather by means of theuniversal adjusting action of the lower roll and its driving mechanism.It will be apparent that the location of these rolls might be reversedor that the yielding character of the lower roll might be imparted tothe upper roll or the characteristics of each reversed. The edges ofthese rolls are rounded in order to prevent distortion of the leather orother irregularities which might otherwise be produced by square-edgedrolls. It is also obvious that springs might be substi tuted for theweights herein shown and de scribed. A different system of drivinggearing may be substituted within the repertoire of the well-knowndriving gear art. Any other well-known form of universal joint otherthan the knuckle joint shown might be adapted.

variations, and at the same time of uniformly the other roll so that itmay rock in the same 35 represents a yielding support of any known typefor supporting the inner end of the axle 8.

29 is the operating table mounted upon the projecting supports 30carried by the frame 2, the lower roll preferably passing through a slotin the table and projecting slightly above the plane thereof.

31 are treadle levers pivoted at 32, and having links 33 pivoted to thetreadle levers and to the pivoted arms 26 and. 27. The operator bystepping upon the treadle board 34 connecting treadle levers 31 slightlymay raise the weights 28 and relieve the pressure of the lower rollagainst the upper roll. When the treadle board is released the Weightsautomatically and constantly restore the pressure. Any degree ofpressure is secured by adding to or taking away the power of the weights2S. 4 I

The bearings 25 carry all the pressure and Weight of the rocker bearingand roller bed mechanism.

The leather or other material to be rolled is placed upon the table 29which facilitates the handling of the stock in the machine.

The double oscillating mounting of one of the rolls is desirable in amachine of this class, as, on account of the constantly varyingthickness and inequalities of the hides rolled, it is necessary to applythe pressure througl'r a member capable of accommodating such.

compressing all parts of the hides.

IVhile I have described my invention in connection with a single form ofmachine exemplified in the accompanying drawings, yet I do not wish itunderstood that I limit myself to the details of construction of saidmachine, or to the modifications hereinbefore referred to, as I wish itunderstood that my invention contemplates any form of machine whichcomes within the scope of the following claims.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination of two rolls, fixed bearings for one roll, a frameswinging in the plane of the axes of the rolls, bearings movably mountedon said frame and. supporting plane as the frame, and means for rotatingthe rolls.

2. The combination of two rolls,fixedbear ings for one roll, a frameswinging in the l plane of the axes of the rolls, bearings movablymounted on said frame and supporting the other roll so that it may rockin the same plane as the frame, a shaft for the first roll, a flexibleshaft for the second roll, and means for rotating the shafts.

3. The combination of a standard open at one end, a roll carried infixed bearings in the standard, bearings mounted in a swinging framecarried by the standard, oscillating bearings carried by the swingingbearings, another roll mounted in the bearings last mentioned, a shaftfor driving said roll, a yielding support for the shaft adjacent to theroll, a flexible part interposed in the shaft, and means for driving therolls.

4. In a leather rolling machine, the combination of a standard open atone end, two rolls, fixed bearings for one of the rolls, a framesupported by a pivot on the standard so that it swings in the plane ofthe axes of the rolls; a roll-supporting yoke resting in bearings insaid frame and capable of rocking in the same plane as the frame, ashaft carrying the'other roll, and. bearings in. the yoke for saidshaft. 1

5. In a leather rolling machine, the combination of a standard open atone end, two rolls, fixed bearings for one of the rolls, a framesupported by a pivot on the standard. so that it swings in the plane ofthe axes of the rolls; a roll-supporting yoke resting in hearings insaid frame and capable of rocking in the same plane as the frame, ashaft carrying the other roll, a universal coupling in said shaft, ashaft in the fixed roll, and means for driving the shafts.

6. In a leather rolling machine, the combination of a standard open atone end, two rolls, fixed bearings for one ofthe rolls, a framesupported by a pivot on the standard so that it swings in the plane ofthe axes of the rolls a roll-supporting yoke resting in bearings in saidframe and capable of rocking in the same plane as the frame, a shaftcarrying the other roll, a universal coupling in said shaft, a yieldingsupport for the shaft near the roll, a shaft for the fixed roll, andmeans for driving the shafts.

In testimony whereof I have affixed my signature in the presence of twowitnesses.

G. ARTHUR SCHIEREN.

Witnesses J. FRED. KELLEY, F. B. Bnoox.

